19 lines
896 B
ArmAsm
19 lines
896 B
ArmAsm
/*
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* Generic 32-bit floating point "/2addr" binary operation. Provide
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* an "instr" line that specifies an instruction that performs
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* "s2 = s0 op s1".
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*
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* For: add-float/2addr, sub-float/2addr, mul-float/2addr, div-float/2addr
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*/
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/* binop/2addr vA, vB */
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mov r3, rINST, lsr #12 @ r3<- B
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ubfx r9, rINST, #8, #4 @ r9<- A
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VREG_INDEX_TO_ADDR r3, r3 @ r3<- &vB
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VREG_INDEX_TO_ADDR r9, r9 @ r9<- &vA
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flds s1, [r3] @ s1<- vB
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FETCH_ADVANCE_INST 1 @ advance rPC, load rINST
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flds s0, [r9] @ s0<- vA
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$instr @ s2<- op
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GET_INST_OPCODE ip @ extract opcode from rINST
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fsts s2, [r9] @ vAA<- s2
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GOTO_OPCODE ip @ jump to next instruction
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